On Mon, 2016-02-29 at 15:58 -0800, York Sun wrote:
> If set, fdt_high restricts the address used by copying device tree.
> It doesn't help much to set a default address without knowing how
> much memory is available, or how memory is used. Setting fdt_high
> to a specical value (0xffffffffffffffff) disables this copying.
> 
> Signed-off-by: York Sun <york....@nxp.com>

Is there a limit that Linux needs the fdt to be under?

I'd hope fdt_high wouldn't cause the device tree to be relocated beyond the
end of memory, or in reserved memory...

-Scott

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